Home / 131,357.50-181,273.56-74,768.88

Finding the Fourth Proportional to 131,357.50, 181,273.56 and 74,768.88

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Solution

The fourth proportional to 131,357.50, 181,273.56 and 74,768.88 is: 103,181.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,357.50 : 181,273.56 = 74,768.88 : x
  2. Step 2: Convert to fraction form
    131,357.50/181,273.56 = 74,768.88/x
  3. Step 3: Cross multiply
    131,357.50x = 181,273.56 × 74,768.88
  4. Step 4: Simplify right side
    131,357.50x = 13,553,621,054.81
  5. Step 5: Solve for x
    x = 13,553,621,054.81/131,357.50
  6. Step 6: Final answer
    x = 103,181.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.